From: John Garry <john.garry@huawei.com> To: <joro@8bytes.org>, <will@kernel.org>, <robin.murphy@arm.com>, <baolu.lu@linux.intel.com> Cc: <iommu@lists.linux-foundation.org>, <linuxarm@huawei.com>, <thierry.reding@gmail.com>, <airlied@linux.ie>, <daniel@ffwll.ch>, <jonathanh@nvidia.com>, <sakari.ailus@linux.intel.com>, <bingbu.cao@intel.com>, <tian.shu.qiu@intel.com>, <mchehab@kernel.org>, <gregkh@linuxfoundation.org>, <digetx@gmail.com>, <mst@redhat.com>, <jasowang@redhat.com>, <linux-kernel@vger.kernel.org>, <chenxiang66@hisilicon.com>, John Garry <john.garry@huawei.com> Subject: [PATCH v4 6/6] dma-iommu: Pass iova len for IOVA domain init Date: Wed, 14 Jul 2021 18:36:43 +0800 [thread overview] Message-ID: <1626259003-201303-7-git-send-email-john.garry@huawei.com> (raw) In-Reply-To: <1626259003-201303-1-git-send-email-john.garry@huawei.com> Pass the max opt iova len to init the IOVA domain, if set. Signed-off-by: John Garry <john.garry@huawei.com> --- drivers/iommu/dma-iommu.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index b540b586fe37..eee9f5f87935 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -335,6 +335,8 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, struct iommu_dma_cookie *cookie = domain->iova_cookie; unsigned long order, base_pfn; struct iova_domain *iovad; + size_t max_opt_dma_size; + unsigned long iova_len = 0; if (!cookie || cookie->type != IOMMU_DMA_IOVA_COOKIE) return -EINVAL; @@ -368,7 +370,16 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, return 0; } - init_iova_domain(iovad, 1UL << order, base_pfn, 0); + + max_opt_dma_size = iommu_group_get_max_opt_dma_size(dev->iommu_group); + if (max_opt_dma_size) { + unsigned long shift = __ffs(1UL << order); + + iova_len = max_opt_dma_size >> shift; + iova_len = roundup_pow_of_two(iova_len); + } + + init_iova_domain(iovad, 1UL << order, base_pfn, iova_len); if (!cookie->fq_domain && (!dev || !dev_is_untrusted(dev)) && domain->ops->flush_iotlb_all && !iommu_get_dma_strict(domain)) { -- 2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: John Garry <john.garry@huawei.com> To: <joro@8bytes.org>, <will@kernel.org>, <robin.murphy@arm.com>, <baolu.lu@linux.intel.com> Cc: linux-kernel@vger.kernel.org, sakari.ailus@linux.intel.com, mst@redhat.com, airlied@linux.ie, gregkh@linuxfoundation.org, jasowang@redhat.com, linuxarm@huawei.com, jonathanh@nvidia.com, iommu@lists.linux-foundation.org, thierry.reding@gmail.com, daniel@ffwll.ch, bingbu.cao@intel.com, digetx@gmail.com, mchehab@kernel.org, tian.shu.qiu@intel.com Subject: [PATCH v4 6/6] dma-iommu: Pass iova len for IOVA domain init Date: Wed, 14 Jul 2021 18:36:43 +0800 [thread overview] Message-ID: <1626259003-201303-7-git-send-email-john.garry@huawei.com> (raw) In-Reply-To: <1626259003-201303-1-git-send-email-john.garry@huawei.com> Pass the max opt iova len to init the IOVA domain, if set. Signed-off-by: John Garry <john.garry@huawei.com> --- drivers/iommu/dma-iommu.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index b540b586fe37..eee9f5f87935 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -335,6 +335,8 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, struct iommu_dma_cookie *cookie = domain->iova_cookie; unsigned long order, base_pfn; struct iova_domain *iovad; + size_t max_opt_dma_size; + unsigned long iova_len = 0; if (!cookie || cookie->type != IOMMU_DMA_IOVA_COOKIE) return -EINVAL; @@ -368,7 +370,16 @@ static int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, return 0; } - init_iova_domain(iovad, 1UL << order, base_pfn, 0); + + max_opt_dma_size = iommu_group_get_max_opt_dma_size(dev->iommu_group); + if (max_opt_dma_size) { + unsigned long shift = __ffs(1UL << order); + + iova_len = max_opt_dma_size >> shift; + iova_len = roundup_pow_of_two(iova_len); + } + + init_iova_domain(iovad, 1UL << order, base_pfn, iova_len); if (!cookie->fq_domain && (!dev || !dev_is_untrusted(dev)) && domain->ops->flush_iotlb_all && !iommu_get_dma_strict(domain)) { -- 2.26.2 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2021-07-14 10:42 UTC|newest] Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-14 10:36 [PATCH v4 0/6] iommu: Allow IOVA rcache range be configured John Garry 2021-07-14 10:36 ` John Garry 2021-07-14 10:36 ` [PATCH v4 1/6] iommu: Refactor iommu_group_store_type() John Garry 2021-07-14 10:36 ` John Garry 2021-08-02 14:46 ` Will Deacon 2021-08-02 14:46 ` Will Deacon 2021-07-14 10:36 ` [PATCH v4 2/6] iova: Allow rcache range upper limit to be flexible John Garry 2021-07-14 10:36 ` John Garry 2021-08-02 15:01 ` Will Deacon 2021-08-02 15:01 ` Will Deacon 2021-08-02 15:23 ` John Garry 2021-08-02 15:23 ` John Garry 2021-08-02 16:09 ` Robin Murphy 2021-08-02 16:09 ` Robin Murphy 2021-07-14 10:36 ` [PATCH v4 3/6] iommu: Allow iommu_change_dev_def_domain() realloc default domain for same type John Garry 2021-07-14 10:36 ` John Garry 2021-07-14 10:36 ` [PATCH v4 4/6] iommu: Allow max opt DMA len be set for a group via sysfs John Garry 2021-07-14 10:36 ` John Garry 2021-07-14 10:36 ` [PATCH v4 5/6] iova: Add iova_len argument to init_iova_domain() John Garry 2021-07-14 10:36 ` John Garry 2021-08-02 15:06 ` Will Deacon 2021-08-02 15:06 ` Will Deacon 2021-08-02 16:06 ` John Garry 2021-08-02 16:06 ` John Garry 2021-08-02 16:16 ` Robin Murphy 2021-08-02 16:16 ` Robin Murphy 2021-08-02 16:40 ` John Garry 2021-08-02 16:40 ` John Garry 2021-08-02 17:18 ` John Garry 2021-08-02 17:18 ` John Garry 2021-09-21 8:48 ` John Garry 2021-09-21 8:48 ` John Garry 2021-07-14 10:36 ` John Garry [this message] 2021-07-14 10:36 ` [PATCH v4 6/6] dma-iommu: Pass iova len for IOVA domain init John Garry 2021-07-15 1:36 kernel test robot 2021-07-19 7:58 ` Dan Carpenter 2021-07-19 7:58 ` Dan Carpenter 2021-07-19 9:12 ` John Garry 2021-07-19 9:12 ` John Garry 2021-07-19 9:32 ` Robin Murphy 2021-07-19 9:32 ` Robin Murphy 2021-07-19 10:45 ` John Garry 2021-07-19 10:45 ` John Garry
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1626259003-201303-7-git-send-email-john.garry@huawei.com \ --to=john.garry@huawei.com \ --cc=airlied@linux.ie \ --cc=baolu.lu@linux.intel.com \ --cc=bingbu.cao@intel.com \ --cc=chenxiang66@hisilicon.com \ --cc=daniel@ffwll.ch \ --cc=digetx@gmail.com \ --cc=gregkh@linuxfoundation.org \ --cc=iommu@lists.linux-foundation.org \ --cc=jasowang@redhat.com \ --cc=jonathanh@nvidia.com \ --cc=joro@8bytes.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linuxarm@huawei.com \ --cc=mchehab@kernel.org \ --cc=mst@redhat.com \ --cc=robin.murphy@arm.com \ --cc=sakari.ailus@linux.intel.com \ --cc=thierry.reding@gmail.com \ --cc=tian.shu.qiu@intel.com \ --cc=will@kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.